A water pail in your backyard has a small hole in it. You notice that it
has drained a total of 3.5 liters in 4 days. What is the average change in
water volume each day?
-0.875
400
Samuel walks forward 19 steps. He represents this movement with a positive
19. How would he represent the opposite of this number?
-19
400
The first play of a football game resulted in a loss of 12 1/2 yards. Then a
penalty resulted in another loss of 5 yards. What is the total loss or gain?
17 1/2 yards loss
400
The price of one share of Acme Company declined $3.50 per day
for 4 days in a row. What is the overall change in price of one share?
-$14
400
5*2 + 10 -3 * 5^2 =
-55
400
To avoid a storm, a passenger-jet pilot descended 0.44 mile in 0.8
minute. What was the plane’s average change of altitude per minute?
-0.55 mile per minute
500
A submarine submerged at a depth of -35.25 meters dives an additional
8.5 meters. What is the new depth of the submarine?
-43.75meters
500
On Monday, your bank account balance was -$12.58.
Because you didn’t realize this, you wrote a check for $30.72 for groceries.
a. What is the new balance in your checking account?
-$43.30
500
In one day, 18 people each withdrew $100 from an ATM machine. What
is the overall change in the amount of money in the ATM machine?